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Sigma rules for CVE-2023-48738

1 rules · scoped to cve · back to CVE-2023-48738

Direct rules mention this entity in their title or description. Related rules cover the techniques this entity is known to use.

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Detection rules

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direct medium

Potential ShellDispatch.DLL Functionality Abuse

Detects potential "ShellDispatch.dll" functionality abuse to execute arbitrary binaries via "ShellExecute"

status test author X__Junior (Nextron Systems) id 82343930-652f-43f5-ab70-2ee9fdd6d5e9 license Sigma · DRL-1.1

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title: Potential ShellDispatch.DLL Functionality Abuse
id: 82343930-652f-43f5-ab70-2ee9fdd6d5e9
status: test
description: Detects potential "ShellDispatch.dll" functionality abuse to execute arbitrary binaries via "ShellExecute"
references:
    - https://www.hexacorn.com/blog/2023/06/07/this-lolbin-doesnt-exist/
author: X__Junior (Nextron Systems)
date: 2023-06-20
tags:
    - attack.execution
    - attack.stealth
logsource:
    category: process_creation
    product: windows
detection:
    selection_img:
        - Image|endswith: '\rundll32.exe'
        - OriginalFileName: 'RUNDLL32.EXE'
    selection_cli:
        CommandLine|contains: 'RunDll_ShellExecuteW'
    condition: all of selection_*
falsepositives:
    - Unlikely
level: medium

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